#!/bin/bash

# Slackware build script for o2em

# Written by B. Watson (yalhcru@gmail.com)

PRGNAM=o2em
VERSION=${VERSION:-1.18}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

SRC=${PRGNAM}${VERSION/./}src

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRC
unzip -L $CWD/$SRC.zip
cd $SRC
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Patch does this:
# make makefile.linux use allegro-config to find cflags/libs for allegro
# make various source files #include <errno.h>
# add SLKCFLAGS support to makefile.linux
patch -p1 < $CWD/compile_fix.diff

# Patch fixes wordsize assumptions on x86_64 and makes no difference on x86
patch -p1 < $CWD/wordsize.diff

cd src
make -f makefile.linux SLKCFLAGS="$SLKCFLAGS"

mkdir -p $PKG/usr/bin $PKG/usr/libexec $PKG/usr/share/pixmaps
install -s -m0755 -oroot -groot dis48 $PKG/usr/bin
install -s -m0755 -oroot -groot $PRGNAM $PKG/usr/libexec/$PRGNAM.bin
install -m0755 -oroot -groot $CWD/$PRGNAM.sh $PKG/usr/bin/$PRGNAM
install -m0644 -oroot -groot $PRGNAM.png $PKG/usr/share/pixmaps

# There is no .desktop file because the emulator lacks a UI (if we
# launch it from the K menu, it prints an error on stdout and exits),
# and because ".bin" isn't much of a MIME type so we can't really
# do association (there's no magic header for the ROMs either).

mkdir -p $PKG/usr/man/man1
gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz

mkdir -p $PKG/usr/share/$PRGNAM/{bios,voice}
if [ -e "$CWD/o2mainsamp.zip" ]; then
  unzip -L $CWD/o2mainsamp.zip -d $PKG/usr/share/$PRGNAM/voice
fi

if [ -e $CWD/odyssey2.zip ]; then
  unzip $CWD/odyssey2.zip
  ROMFILE=o2bios.rom
elif [ -e $CWD/o2bios.rom ]; then
  ROMFILE=$CWD/o2bios.rom
elif [ -e $CWD/o2rom.bin ]; then
  ROMFILE=$CWD/o2rom.bin
fi

if [ -n "$ROMFILE" ]; then
  cat $ROMFILE > $PKG/usr/share/$PRGNAM/bios/o2rom.bin
fi

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cd ../docs
for file in *; do
  sed 's/\r//g' < $file > $PKG/usr/doc/$PRGNAM-$VERSION/$file
done
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
